Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao tinh hoa snippets" » "tao trinh hoa snippets", "dao tinh hoa snippets", "tho tinh hoa snippets", "tao tinh hoc snippets", "tao minh hoa snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tao tinh hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tao tinh hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tao tinh hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao tinh hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.